We can use the formula: c = λν where c is the speed of light (3.00 x 10^8 m/s), λ is the wavelength in meters, and ν is the frequency in Hertz (Hz). First, we need to convert the wavelength from centimeters to meters: λ = 0.500 cm = 0.00500 m Now we can plug in the values and solve for ν: 3.00 x 10^8 m/s = 0.00500 m x ν ν = (3.00 x 10^8 m/s) / (0.00500 m) ν = 6.00 x 10^10 Hz Therefore, the frequency of radiation emitted by the microwave oven is 6.00 x 10^10 Hz.